A Content-based Layered Multiple Description Coding Scheme for Robust Video Transmission over Ad Hoc Networks

被引：1

作者：

Yang, Jun ^{[1
]}

Gong, Shengrong ^{[1
]}

机构：

[1] Soochow Univ, Coll Comp Sci & Technol, Suzhou, Jiang Su, Peoples R China

来源：

PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON ELECTRONIC COMMERCE AND SECURITY, VOL II | 2009年

关键词：

Ad Hoc; content-based; layered multiple description coding; robust video transmission;

D O I：

10.1109/ISECS.2009.106

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Ad hoc networks are characterized with frequent link failures and network topology change. These features result in a great challenge to transmit video over ad hoc networks. We propose a novel content-based layered multiple description coding scheme C-LMDC for robust video transmission over ad hoc networks. First determine the region of interest (ROI) of the video image before actual coding. Then divide the video sequence into ROI group and regular group using dynamic flexible macro block ordering (FMO) technology. After that, carry out layered multiple description coding scheme and protect ROI slices by redundant slices technology. Finally transmit the bit-stream using multi-path transmission. The simulation results show that our method improves the objective and subjective quality of the reconstructed video sequence obviously and ensure a robust video transmission over Ad Hoc networks.

引用

页码：21 / 24

页数：4

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